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b7c891c629
These are easily built off the standard C library functions memcpy and memcmp. By marking these inline we stand a good chance of the C compiler replacing the entire thing with tight machine code, because many compilers will actually inline a memcmp or memcpy when the 3rd argument (the size) is a constant value. Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
101 lines
3.1 KiB
C
101 lines
3.1 KiB
C
/*
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* This file is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License, version 2,
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* as published by the Free Software Foundation.
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*
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* In addition to the permissions in the GNU General Public License,
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* the authors give you unlimited permission to link the compiled
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* version of this file into combinations with other programs,
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* and to distribute those combinations without any restriction
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* coming from the use of this file. (The General Public License
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* restrictions do apply in other respects; for example, they cover
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* modification of the file, and distribution when not linked into
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* a combined executable.)
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*
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* This file is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; see the file COPYING. If not, write to
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* the Free Software Foundation, 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#include <stdio.h>
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#include <git/common.h>
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/** Declare a function never returns to the caller. */
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#ifdef __GNUC__
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# define NORETURN __attribute__((__noreturn__))
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#else
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# define NORETURN /* noreturn */
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#endif
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/**
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* Declares a new test block starting, with the specified name.
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* @param name C symbol to assign to this test's function.
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*/
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#define BEGIN_TEST(name) \
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void testfunc__##name (void) \
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{ \
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test_begin(#name, __FILE__, __LINE__); \
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{
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/** Denote the end of a test. */
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#define END_TEST \
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} \
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test_end(); \
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}
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/* These are internal functions for BEGIN_TEST, END_TEST. */
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extern void test_begin(const char *, const char *, int);
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extern void test_end(void);
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/**
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* Abort the current test suite.
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*
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* This function terminates the current test suite
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* and does not return to the caller.
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*
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* @param fmt printf style format string.
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*/
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extern void test_die(const char *fmt, ...)
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NORETURN
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GIT_FORMAT_PRINTF(1, 2);
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/**
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* Evaluate a library function which must return success.
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*
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* The definition of "success" is the classical 0 return value.
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* This macro makes the test suite fail if the expression evaluates
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* to a non-zero result. It is suitable for testing most API
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* functions in the library.
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*
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* @param expr the expression to evaluate, and test the result of.
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*/
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#define must_pass(expr) \
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if (expr) test_die("line %d: %s", __LINE__, #expr)
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/**
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* Evaluate a library function which must return an error.
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*
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* The definition of "failure" is the classical non-0 return value.
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* This macro makes the test suite fail if the expression evaluates
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* to 0 (aka success). It is suitable for testing most API
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* functions in the library.
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*
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* @param expr the expression to evaluate, and test the result of.
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*/
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#define must_fail(expr) \
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if (!(expr)) test_die("line %d: %s", __LINE__, #expr)
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/**
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* Evaluate an expression which must produce a true result.
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*
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* @param expr the expression to evaluate, and test the result of.
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*/
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#define must_be_true(expr) \
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if (!(expr)) test_die("line %d: %s", __LINE__, #expr)
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